{"id":97829,"date":"2026-08-30T11:00:48","date_gmt":"2026-08-30T03:00:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/97829.html"},"modified":"2026-08-30T11:00:48","modified_gmt":"2026-08-30T03:00:48","slug":"%e9%80%9a%e8%ae%af%e5%bd%95%e7%b3%bb%e7%bb%9f%e6%8a%a5%e9%94%99%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/97829.html","title":{"rendered":"\u901a\u8baf\u5f55\u7cfb\u7edf\u62a5\u9519\uff08\u4e8c\uff09"},"content":{"rendered":"<p>\u4e00\u3001\u7ed3\u6784\u4f53\u662f\u201c\u7ec4\u5408\u201d&#xff08;\u5404\u5360\u5404\u5c4b&#xff09;&#xff0c;\u8054\u5408\u4f53\u662f\u201c\u5171\u7528\u201d&#xff08;\u6324\u5728\u4e00\u5c4b&#xff09;\u3002<\/p>\n<p>\u4e8c\u3001\u7ed3\u6784\u4f53\u5b9a\u4e49\u683c\u5f0ftypedef sturct \u7ed3\u6784\u540d{}&#xff1b;\u7ed3\u6784\u540d\u540e\u4e0d\u52a0\u5c0f\u62ec\u53f7\u3002<\/p>\n<p>\u4e09\u3001E0065\u9519\u8bef&#xff0c;\u5728\u5b9a\u4e49\u7ed3\u6784\u4f53\u540e\u5e94\u52a0\u4e0a\u201c&#xff1b;\u201d&#xff0c;<\/p>\n<p>\u56db\u3001\u521d\u59cb\u5316\u901a\u8baf\u5f55\u65f6\u4e0d\u7528\u8fdb\u884c\u5224\u65ad&#xff0c;\u76f4\u63a5\u7f6e0<\/p>\n<p>\u4e94\u3001\u5b9a\u4e49\u901a\u8baf\u5f55\u53d8\u91cf\u672acontact con;\u800c\u4f20\u51fa\u521d\u59cb\u5316\u51fd\u6570Initcontact(),\u4e3a\u6307\u9488&#xff0c;\u5219\u7528\u53d6\u5730\u5740\u7b26\u53f7&amp;\u3002<\/p>\n<p>\u5373Initcontact(&amp;con);<\/p>\n<p>\u516d\u3001scanf(&#034;%d\\\\n&#034;, &amp;input);\u9519\u8bef\\\\n\u4e0d\u80fd\u5199\u91cc\u9762\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u65e0\u6cd5\u5f80\u4e0b\u6267\u884c\u3002<\/p>\n<p>\u4e03\u3001if (strcmp(p-&gt;per[i].name, name)) \u4fee\u6539\u4e3a<\/p>\n<p>if (strcmp(p-&gt;per[i].name, name) &#061;&#061; 0) {  \/\/ \u5fc5\u987b\u5224\u65ad\u7b49\u4e8e0<br \/>\n    return i;<br \/>\n}\u3002<\/p>\n<p>\u516b\u3001\u82e5\u6307\u9488\u6307\u5411\u7684\u5143\u7d20\u5185\u5bb9\u4e3a\u7a7aNULL\u5219\u8868\u793a\u5206\u914d\u5185\u5b58\u5931\u8d25&#xff0c;\u8fd4\u56de-1.<\/p>\n<p>\u4e5d\u3001 exit(-1);exit(-1)\u00a0&#061; \u7ed9\u64cd\u4f5c\u7cfb\u7edf\u53d1\u4fe1\u53f7&#xff1a;\u201c\u7a0b\u5e8f\u51fa\u6545\u969c\u4e86&#xff0c;\u6211\u7acb\u523b\u81ea\u6740&#xff01;\u201d<br \/>\n\u8bb0\u4f4f&#xff1a;exit\u00a0\u662f\u7ec8\u7ed3\u6574\u4e2a\u7a0b\u5e8f&#xff0c;\u800c\u00a0return\u00a0\u53ea\u662f\u7ec8\u7ed3\u5f53\u524d\u51fd\u6570\u3002<\/p>\n<p>\u5341\u3001struct Person* new_arr &#061; (struct Person*)realloc(ps-&gt;arr, new_capacity * sizeof(struct Person));<\/p>\n<p>\u5341\u4e00\u3001free(ps-&gt;arr); \/\/ \u91ca\u653e\u5806\u4e0a\u7684\u6570\u7ec4<\/p>\n<p>\u5341\u4e8c\u3001<span style=\"color:#fe2c24\">\u8fd9\u4e0d\u662f\u51fd\u6570\u8c03\u7528&#xff0c;\u800c\u662f\u51fd\u6570\u58f0\u660e&#xff08;\u58f0\u660e\u4e86\u4e00\u4e2a\u540d\u4e3a\u00a0Checkcapacity\u3001\u8fd4\u56de\u7c7b\u578b\u4e3a\u00a0void\u3001\u53c2\u6570\u4e3a\u00a0p\u00a0\u7684\u51fd\u6570&#xff09;\u3002C\u8bed\u8a00\u7f16\u8bd1\u5668\u4f1a\u5c06\u8fd9\u884c\u89c6\u4e3a\u4e00\u4e2a\u5c40\u90e8\u58f0\u660e&#xff0c;\u4e0d\u4f1a\u751f\u6210\u4efb\u4f55\u8c03\u7528\u6307\u4ee4\u3002\u56e0\u6b64\u6267\u884c\u00a0Addcontact\u00a0\u65f6&#xff0c;\u7a0b\u5e8f\u4f1a\u8df3\u8fc7\u8fd9\u884c&#xff0c;\u76f4\u63a5\u6267\u884c\u540e\u9762\u7684\u00a0printf&#xff0c;\u6240\u4ee5\u00a0Checkcapacity\u00a0\u51fd\u6570\u4ece\u672a\u88ab\u8fdb\u5165\u3002\u4e0d\u52a0\u8fd4\u56de\u7c7b\u578b\u76f4\u63a5\u8c03\u7528Checkcapacity(),\u5e76\u4e14\u51fd\u6570\u540d\u8981\u5199\u6b63\u786e\u3002\u524d\u9762\u4e0d\u52a0\u58f0\u660ev<\/span>oid.<\/p>\n<p>\u5341\u4e8c\u3001\u4e66\u7c4d\u63a8\u6324\u300a\u6df1\u5165\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf\u300b&#xff0c;\u7f16\u7a0b\u5e73\u53f0\u5251\u6307offer\u3002<\/p>\n<\/p>\n<\/p>\n<p>\u94fe\u8868\u8282\u70b9<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"322\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260830030045-6a939cddc5ade.png\" width=\"962\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"854\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260830030046-6a939cde525f4.png\" width=\"1242\" \/><\/p>\n<p>\u4e00\u3001\u6e90\u6587\u4ef6\u51fd\u6570\u5927\u62ec\u53f7\u540e\u4e0d\u7528\u5199\u5f15\u53f7&#xff1b;\u3002<\/p>\n<p>\u4e8c\u3001 1. \u521b\u5efa\u65b0\u8282\u70b9 struct PersonNode* newNode &#061; (struct PersonNode*)malloc(sizeof(struct PersonNode));\u4e14\u8981\u5224\u65ad\u662f\u5426\u521b\u5efa\u5931\u8d25\u3002<\/p>\n<p>\u4e09\u3001\u6392\u5e8f\u65f6\u5019&#xff0c;\u5224\u65ad\u4e24\u4e2a\u8282\u70b9\u540e\u65e0\u8bba\u5927\u5c0f\u524d\u6307\u9488\u5f80\u540e\u79fb\u52a8&#xff0c;\u56e0\u6b64\u5199\u9053\u5224\u65ad\u5916\u9762\u3002<\/p>\n<p>\u56db\u3001\u5192\u6ce1\u6392\u5e8f\u3002\u524d\u6307\u9488\u6bcf\u8f6e\u5faa\u73af\u4ece\u5934\u5230\u5c3e\u3002\u5c3e\u6307\u9488\u56fa\u5b9a\u5728\u6700\u540e&#xff0c;\u7531\u4e8e\u6bcf\u8f6e\u5faa\u73af\u6392\u597d\u6700\u540e\u4e00\u4e2a\u8282\u70b9&#xff0c;\u56e0\u6b64\u6bcf\u8f6e\u540e&#xff0c;\u53ef\u4ee5\u8ba9\u5c3e\u6307\u9488\u5f80\u524d\u79fb\u52a8\u4e00\u4f4d\u3002\u90a3\u4e48\u8be5\u5982\u4f55\u79fb\u52a8\u5462&#xff0c;\u501f\u52a9\u524d\u6307\u9488&#xff0c;\u524d\u6307\u9488\u6bcf\u8f6e\u79fb\u52a8\u5230\u5012\u6570\u7b2c\u4e8c&#xff0c;\u7136\u540e\u5c3e\u6307\u9488\u6307\u5411\u524d\u6307\u9488\u4f4d\u7f6e\u5373\u53ef\u3002<\/p>\n<p>\u4e94\u3001\u5192\u6ce1\u6392\u5e8f\u3002\u5185\u5c42\u5faa\u73af\u6761\u4ef6&#xff08;pre-&gt;next!&#061;ret)&#xff0c;\u5916\u5c42\u5faa\u73af\u4f7f\u7528\u4e00\u4e2aswapped\u53d8\u91cf\u3002\u4ea4\u6362\u5219\u7f6e\u4e3a1&#xff0c;\u5426\u5219\u4e3a0\u3002<\/p>\n<p>\u516d\u3001\u4e14do while(){}\u540e\u52a0\u5f15\u53f7&#xff1b;\u3002<\/p>\n<p>\u4e03\u3001switch\u5185\u8bed\u53e5\u9000\u51fa\u7528beak;\u4e0d\u7528return\u3002<\/p>\n<p>\u516b\u3001\u5f15\u53d1\u4e86\u5f02\u5e38: \u8bfb\u53d6\u8bbf\u95ee\u6743\u9650\u51b2\u7a81\u3002 **ret** \u662f nullptr\u3002<span style=\"color:#fe2c24\">\u5f53\u5faa\u73af\u7b2c\u4e8c\u6b21\u5224\u65ad\u00a0while (pre !&#061; NULL)\u00a0\u65f6&#xff0c;pre\u00a0\u5df2\u7ecf\u4e3a\u00a0NULL&#xff0c;\u5faa\u73af\u7ed3\u675f&#xff0c;\u4f46\u5728\u5faa\u73af\u4f53\u5185\u6700\u540e\u4e00\u884c\u00a0ret &#061; ret-&gt;next;\u00a0\u5df2\u7ecf\u5728\u7b2c\u4e00\u6b21\u8fed\u4ee3\u65f6\u6267\u884c\u4e86&#xff0c;\u6b64\u65f6\u00a0ret\u00a0\u4e3a\u00a0NULL&#xff0c;\u6240\u4ee5\u00a0ret-&gt;next\u00a0\u89e6\u53d1\u4e86\u975e\u6cd5<\/span>\u8bbf\u95ee\u3002\u9700\u8981\u5c06while\u5185\u6539\u4e3awhile(ret!&#061;NULL);<\/p>\n<p>\u4e5d\u3001C6054 \u662f\u4e00\u4e2a\u4ee3\u7801\u5206\u6790\u8b66\u544a&#xff0c;\u8868\u793a\u4f20\u9012\u7ed9\u9700\u8981\u96f6\u7ec8\u6b62\u5b57\u7b26\u4e32\u7684\u51fd\u6570\u7684\u5b57\u7b26\u4e32\u53ef\u80fd\u672a\u6b63\u786e\u96f6\u7ec8\u6b62\u3002\u8fd9\u53ef\u80fd\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u7a0b\u5e8f\u5d29\u6e83&#xff0c;\u56e0\u6b64\u9700\u8981\u786e\u4fdd\u5b57\u7b26\u4e32\u4ee5\u00a0\\\\0\u00a0\u7ed3\u5c3e\u3002<\/p>\n<p>\u5341\u3001fwrite\u00a0\u7528\u4e8e\u5c06\u6570\u636e\u5757\u5199\u5165\u6587\u4ef6&#xff1a;fwrite(&amp;(cur-&gt;data), sizeof(Person), 1, fp);<\/p>\n<ul>\n<li>\n<p>ptr&#xff1a;\u6307\u5411\u8981\u5199\u5165\u6570\u636e\u7684\u5185\u5b58\u8d77\u59cb\u5730\u5740&#xff08;\u901a\u5e38\u662f\u4f60\u7ed3\u6784\u4f53\u53d8\u91cf\u7684\u5730\u5740&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>size&#xff1a;\u6bcf\u4e2a\u6570\u636e\u5355\u5143\u7684\u5927\u5c0f&#xff08;\u5b57\u8282\u6570&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>count&#xff1a;\u8981\u5199\u5165\u7684\u6570\u636e\u5355\u5143\u4e2a\u6570\u3002<\/p>\n<\/li>\n<li>\n<p>stream&#xff1a;\u6587\u4ef6\u6307\u9488&#xff08;fopen\u00a0\u7684\u8fd4\u56de\u503c&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8fd9 4 \u4e2a\u51fd\u6570\u662f C \u6807\u51c6 I\/O \u5e93\u7684\u201c\u56db\u5927\u91d1\u521a\u201d&#xff0c;\u5b83\u4eec\u5171\u540c\u6784\u6210\u4e86\u6587\u4ef6\u64cd\u4f5c\u7684\u5b8c\u6574\u751f\u547d\u5468\u671f&#xff1a;<\/p>\n<li>\n<p>fopen&#xff1a;\u6253\u5f00\u6587\u4ef6&#xff08;\u83b7\u5f97\u64cd\u4f5c\u6743\u9650&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>fwrite\u00a0\/\u00a0fread&#xff1a;\u8bfb\u5199\u6587\u4ef6\u5185\u5bb9&#xff08;\u4f20\u8f93\u6570\u636e&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>fclose&#xff1a;\u5173\u95ed\u6587\u4ef6&#xff08;\u91ca\u653e\u8d44\u6e90\u5e76\u786e\u4fdd\u6570\u636e\u843d\u76d8&#xff09;<\/p>\n<\/li>\n<p>\u5341\u4e00\u3001\u6587\u4ef6\u7684\u8bfb\u5199\u64cd\u4f5c \u7b14\u8bb0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"794\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260830030046-6a939cdec3b21.png\" width=\"760\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"854\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260830030046-6a939cdeec757.png\" width=\"762\" \/><\/p>\n<\/p>\n<p>\u5341\u4e8c\u3001int file_size &#061; 0;<br \/>\nfread(&amp;file_size, sizeof(int), 1, fp);<br \/>\nfor (int i &#061; 0; i &lt; file_size; i&#043;&#043;) {<br \/>\n\u00a0\u00a0 \u00a0struct PersonNode* newnode &#061; (struct PersonNode*)malloc(sizeof(struct PersonNode));<br \/>\n\u00a0\u00a0 \u00a0<span style=\"color:#fe2c24\">fopen(&amp;newnode, sieozef(struct PersonNode), 1, fp);<\/span><br \/>\nif(newnode&#061;&#061;NULL){<\/p>\n<p>printf(&#034;\u52a0\u8f7d\u65f6\u5185\u5b58\u5206\u914d\u5931\u8d25\\\\n&#034;);<\/p>\n<p>break;}<\/p>\n<p>if(fread(&amp;newnode-&gt;data,sizeof(struct person),1,fp)!&#061;1){<\/p>\n<p>printf(&#034;\u5185\u5b58\u5206\u914d\u5931\u8d25\u201c&#xff09;&#xff1b;<\/p>\n<p>free(newnode);<\/p>\n<p>break;\u00a0 \u00a0 }<\/p>\n<p>newnode-&gt;next &#061; p-&gt;head;<br \/>\n\u00a0\u00a0 \u00a0p-&gt;head &#061; newnode;<br \/>\n}<br \/>\nfclose(fp);<br \/>\nprintf(&#034;\u6587\u4ef6\u8bfb\u53d6\u6210\u529f\\\\n&#034;);<br \/>\n\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u7ed3\u6784\u4f53\u662f\u201c\u7ec4\u5408\u201d&#xff08;\u5404\u5360\u5404\u5c4b&#xff09;&#xff0c;\u8054\u5408\u4f53\u662f\u201c\u5171\u7528\u201d&#xff08;\u6324\u5728\u4e00\u5c4b&#xff09;\u3002\u4e8c\u3001\u7ed3\u6784\u4f53\u5b9a\u4e49\u683c\u5f0ftypedef sturct \u7ed3\u6784\u540d{}&#xff1b;\u7ed3\u6784\u540d\u540e\u4e0d\u52a0\u5c0f\u62ec\u53f7\u3002\u4e09\u3001E0065\u9519\u8bef&#xff0c;\u5728\u5b9a\u4e49\u7ed3\u6784\u4f53\u540e\u5e94\u52a0\u4e0a\u201c&#xff1b;\u201d&#xff0c;\u56db\u3001\u521d\u59cb\u5316\u901a\u8baf\u5f55\u65f6\u4e0d\u7528\u8fdb\u884c\u5224\u65ad&#xff0c;\u76f4\u63a5\u7f6e0\u4e94\u3001\u5b9a\u4e49\u901a\u8baf\u5f55\u53d8\u91cf\u672acontact con;\u800c\u4f20\u51fa\u521d\u59cb\u5316\u51fd\u6570Initcontact(),\u4e3a\u6307\u9488&amp;#xff0c<\/p>\n","protected":false},"author":2,"featured_media":97825,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,1813],"topic":[],"class_list":["post-97829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-1813"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u901a\u8baf\u5f55\u7cfb\u7edf\u62a5\u9519\uff08\u4e8c\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/97829.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta 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